Great! Two organizations are looking out for public health. However, a point of confusion for parents is that they both have their own Growth Standards and publish their own set of Growth Charts. How do you know which ones to use?

Among several considerations on which this decision was based, one of the key recognitions is that it is because breastfeeding is the recommended standard for infant feeding. The WHO growth charts were 100% constructed from data of babies who were breastfed for 12 months and were predominantly breastfed for at least 4 months. Another reason was that when the CDC growth charts were created, there was a scarcity in data for the first several months of age.